The one used as the input device is touch screen. Thus, option C is correct.
What are input devices?
The input device can be given as the devices that are used to form the command to the operating system. The input devices provide data and control signals to an information processing system.
The example of input device includes, scanner, camera, keyboard, joystick, and touch screen. Thus, option C is correct.
Learn more about input devices, here:
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